Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
A critical analysis on the complex modulus provided by DMA
Submission Author:
Isadora Ruas Henriques , RJ
Co-Authors:
Lavinia Maria Alves Borges, DANIEL CASTELLO, Bluma Guenther Soares, Marysilvia Costa, Isadora Ruas Henriques
Presenter: Isadora Ruas Henriques
doi://10.26678/ABCM.COBEM2017.COB17-1018
Abstract
Dynamic mechanical analysis (DMA) is a widely used technique to characterize viscoelastic materials as a function of temperature and also frequency. This work aims to measure the complex modulus in three different operational modes of a DMA to investigate its frequency- and temperature-dependence, and also to compare all results. Even though the test conditions were almost the same, discrepancies were found between the measured complex modulus. However, the thermorheologically simple behaviour could be observed in all measurements.
Keywords
viscoelastic materials, DMA, Complex Modulus, thermorheologically simpe behaviour
